Affichage des archives de mardi, 12 janvier 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Jan 12 1235 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
12 Jan 2016	108	008
13 Jan 2016	106	007
14 Jan 2016	105	007

Bulletin

Solar activity is low, with no C-class flares reported during last 24 hours. The strongest reported flare was B6.8 flare from the Catania sunspot group 6 (NOAA AR 2483). The C-class flares are still possible, but not very probable, in the coming hours. No Earth directed CMEs were observed in the last 24 hours. The Earth is currently inside the fast solar wind with the speed of about 580 km/s. The fast flow from the narrow and elongated low latitude coronal hole (between N12 and N34) which crossed the central meridian in the early morning of January 09, arrived at the Earth at about 12:30 UT on January 11. The interplanetary magnetic field magnitude is still slightly elevated, currently about 8 nT. Due to the intervals of the negative value of the Bz component of the interplanetary magnetic field (down to -7 nT) in the evening of January 11, disturbed geomagnetic conditions were reported (NOAA reported a Kp =4 and Dourbes reported K=4). Geomagnetic conditions are currently quiet and are expected to remain so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 040, sur la base de 13 stations.

Indices solaires pour 11 Jan 2016

Nombre de Wolf, observé par Catania	043
Flux solaire à 10 cm	108
AK Chambon La Forêt	029
AK Wingst	017
Ap estimé	016
Nombre international de taches solaires estimé	049 - Basé sur 15 stations

Résumé des événements marquants

Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive

Toutes les heures sont indiquées en UTC

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